Strap adjuster



FIG. 1 is a perspective view of a strap adjuster, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 2.

The broken lines in the drawings show portions of the strap adjuster which form no part of the claimed design. 

CLAIM The ornamental design for a strap adjuster, as shown and described. 